Phaser 3 Starter Template (game.js)

game.js

var config = {
    type: Phaser.AUTO,
    width: 800,
    height: 600,
    physics: {
        default: 'arcade',
        arcade: { 
            gravity: { y: 200 }
        }
    },
    scene: {
        preload: preload,
        create: create,
        update: update
    }
};

var game = new Phaser.Game(config);

function preload () {

}

function create () {

}

function update() {

}